freestoneWiktionary 原文英/ˈfriːstəʊn/美/ˈfriːstoʊn/构词拆解freefree词干stonestone词干词源说明From free + stone.释义名词noun1(geology) Sedimentary rock: a type of stone that is composed of small particles and easily shaped, most commonly sandstone or limestone.2countableA stone fruit having a stone (pit) that is relatively free of the flesh.